<template>
  <div class="login-container">
    <el-row>
      <el-col :span="12" :xs="0"></el-col>
      <el-col :span="12" :xs="24">
        <el-form
          class="login_form"
          :model="loginForm"
          :rules="rules"
          ref="loginForms"
        >
          <h1>Hello</h1>
          <h2>欢迎来到甄选后台管理系统</h2>
          <el-form-item prop="username">
            <el-input
              :prefix-icon="User"
              v-model="loginForm.username"
            ></el-input>
          </el-form-item>
          <el-form-item prop="password">
            <el-input
              v-model="loginForm.password"
              type="password"
              :prefix-icon="Lock"
              show-password
            ></el-input>
          </el-form-item>
          <el-form-item>
            <el-button
              :loading="loading"
              class="login_btn"
              type="primary"
              size="default"
              @click="login"
            >
              登录
            </el-button>
          </el-form-item>
        </el-form>
      </el-col>
    </el-row>
  </div>
</template>

<script setup lang="ts">
import { reactive, ref } from 'vue'
import useUserStore from '@/store/modules/user.ts'
import { useRouter, useRoute } from 'vue-router'
import { ElNotification } from 'element-plus'
import { getTime } from '@/utils/time'
let $router = useRouter()
let $route = useRoute()
let loading = ref(false)
let loginForms = ref()
let loginForm = reactive({
  username: 'admin',
  password: '111111',
})
const validatorUserName = (rule: any, value: any, callback: any) => {
  if (value.length >= 5) {
    callback()
  } else {
    callback(new Error('账号长度至少五位'))
  }
}
const validatorPasswprd = (rule: any, value: any, callback: any) => {
  if (value.length >= 6) {
    callback()
  } else {
    callback(new Error('密码长度至少六位'))
  }
}
const rules = {
  //required:是否必须要输入
  //min:最少几位
  //max:最大几位
  //message:错误提示信息
  //trigger:触发校验表单的时机 change=>文本发生变化时，blur=>失去焦点时
  username: [
    //{required:true, min:6, max:10, message:'账号长度至少六位',trigger:'change'}
    { trigger: 'change', validator: validatorUserName },
  ],
  password: [
    //{required:true, min:6, max:15,message:"密码长度至少六位",trigger:'change'}
    { trigger: 'change', validator: validatorPasswprd },
  ],
}
let UserStore = useUserStore()
//登录按钮回调
const login = async () => {
  //保证全部表单校验通过再发请求
  await loginForms.value.validate()
  //加载效果：开始加载
  loading.value = true
  try {
    await UserStore.userLogin(loginForm)
    let redirect: any = $route.query.redirect
    $router.replace({ path: redirect || '/' });

    ElNotification({
      type: 'success',
      message: '欢迎回来',
      title: `Hi,${getTime()}好`,
    })
    loading.value = false
  } catch (error) {
    loading.value = false
    ElNotification({
      type: 'error',
      message: (error as Error).message,
    })
  }
}
</script>

<style scoped lang="scss">
.login-container {
  width: 100%;
  height: 100vh;
  background: url('@/assets/images/background.jpg') no-repeat;
  background-size: cover;

  .login_form {
    position: relative;
    width: 80%;
    top: 30vh;
    background: url('@/assets/images/login_form.png') no-repeat;
    background-size: cover;
    padding: 40px;
    h1 {
      color: white;
      font-size: 40px;
    }
    h2 {
      font-size: 20px;
      color: white;
      margin: 20px 0px;
    }
    .login_btn {
      width: 100%;
    }
  }
}
</style>
